Condensate Drain Trap - Watts Aerco BENCHMARK 750 User Manual

Benchmark 750 – 1000 Boiler User Manual - INTERNATIONAL

7.7 CONDENSATE DRAIN TRAP

Benchmark Heating Boilers contain a condensate trap (P/N 24441), located external to the unit
and attached to the drain connection from the exhaust manifold. The location on the unit is
shown in Chapter 2, Figure 2-5. This trap should be inspected and cleaned in accordance with
the maintenance schedule shown in Table 7-1 to ensure proper operation.
To inspect and clean the trap, proceed as follows:
Condensate Trap Inspection and Cleaning
1. Disconnect the external condensate trap by loosening and then removing connections on
the inlet and outlet sides of the condensate trap (see Figure 7-6).
2. Loosen the four (4) thumbscrews securing the trap's cover and then remove the cover and
the O-ring from under the cover.
3. Remove the float and then thoroughly clean the trap and float. Also inspect the drain
piping for blockage. If the trap cannot be thoroughly cleaned, replace the entire trap (P/N
24441).
4. Replace the float, install the O-ring (P/N 84017), and then replace the trap cover.
5. Reassemble all piping and hose connections to the condensate trap inlet and outlet.
3/4" NPT Port
Thumb
Screw
INLET
O-Rings
(2)
Figure 7-6: External Condensate Trap – Cross-Section & Exploded View
OMM-0119_0A
GF-130-I
CHAPTER 7 – MAINTENANCE
CROSS-SECTION
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
Thumb Screws (4)
Condensate
Trap O-Ring
(P/N 84017)
Float
3/4" NPT
Port
OUTLET
EXPLODED VIEW
Page 93 of 170
11/03/2016